Abstract
We present the system dlvhex, a solver for HEX-programs, which are nonmonotonic logic programs admitting both higher-order atoms as well as external atoms. Higher-order features are widely acknowledged as being useful for various tasks, including meta-reasoning. Furthermore, the possibility to exchange knowledge with external sources in a fully declarative paradigm such as answer-set programming (ASP) becomes increasingly important, in particular in view of applications in the Semantic-Web area. Through external atoms, HEX-programs can deal with external knowledge and reasoners of various nature, such as RDF datasets or description-logics knowledge bases.

URL:
http://rewerse.net/publications/rewerse-publications.html#REWERSE-RP-2006-127

BibTeX:

@inproceedings{REWERSE-RP-2006-127,
	author = {Thomas Eiter and Giovambattista Ianni and Roman Schindlauer and Hans Tompits},
	title = {dlvhex: A Prover for Semantic-Web Reasoning under the Answer-Set Semantics},
	booktitle = {Proceedings of The 2006 IEEE/WIC/ACM International Conference on Web Intelligence, Hong Kong (18th--22nd December 2006)},
	year = {2006},
	pages = {1073--1074},
	url = {http://rewerse.net/publications/rewerse-publications.html#REWERSE-RP-2006-127}
}